I read that as meaning 2 or more items for sale in one listing, as in their example. Not a multivariation listing like you created. If you'd listed the 3 gels as a single listing, as in you get the 3 gels for the purchase price, it would qualify, rather than have a listing where 3 separate items are available. I'm not sure if I've made sense or not!
Initially I thought multivariation listing, but when they mentioned auction, you can't do multis with them. Therefore I then took it as meaning multiple items in the same listing. For example, the 5 CD's they mentioned in the terms. Meaning, whoever buys or wins the auction gets 5 CD's.
Edit: the items have to sell during the promotion period, so if you're going to use it, create listings for your fastest sellers. You could put together a "for him" and a "for her" package and include 3 different items in the single listing, so whoever buys it, gets the 3 items.
